One of the ways of deepening and updating employees' knowledge is e-learning. It can be applied as an independent training method, as a support for traditional methods or/and a technique of updating knowledge. According to the context, e-learning can be treated as a substitute or complementary service in comparison with conventional training. E-learning's role is not to replace the traditional education methods, but rather to enrich them, supplement and increase their effectiveness. Supplementing traditional trainings with electronic methods (blended learning) unites the benefits of both methods and provides the best results. This method of training has the most development potential for the coming years.(original abstract)